I haven't installed gentoo yet. I'm working on get a cheap motherboard and cpu. I have rest of parts left that I can use. I only need to know if this video card can work on gentoo. If not, I'll get new one.

Yes, it does work, I use a sav4 pro based card. But do not expect OGL. DRI or just about any other kind of accelerated support. 2D and vid support is ok but videos are grainy and I have run into some sync problems with divx(could by my slow K7-500)

Yeah, I got that card to work too. However, the performance was a bit crappy on it. I was able to watch videos in mplayer, but ran into some issues with applications that wanted a bit more video memory. Games are practicaly unplayable. The XFree86-4 module's name is "savage". For a extra workstation though, it should be fine. Have fun with it.